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CompletedNCT03401333STARUpdated Oct 23, 2018

Brief Interventions With Text Messaging to Reduce Adolescent Alcohol and Marijuana Use

An interventional study of Text Messaging and Brief Negotiation Interview in Alcohol Drinking and Marijuana, sponsored by Yale University. Completed at 1 site in United States. Open to participants aged 13 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-23.

Sponsored by Yale University · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
13 Years to 18 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 32 studies in Alcohol Drinking by Yale University — 6 open to participants now, 6 under way, none of them phase 3. Alcohol Drinking · Yale University.

Enrollment
28th of 31
10 · median 57
Started
2017
with 2 others
No phase
8 of 32
1 open now
Registered
18th of 32
by date

Among the 32 studies in Alcohol Drinking by Yale University, this one is the 28th largest by enrollment of the 31 interventional ones, is one of 3 that started in 2017, is one of 8 with no phase, and was the 18th registered.

By phase

32 studies; the count open now beside each. This study's row is marked.

Phase 113 · 4 open
Phase 29 · 1 open
No phasethis study8 · 1 open
Observational1 · 0 open
Phase 41 · 0 open

By the year they started

First in 2006; this study’s year is marked. 3 started in 2017.

Size and results

Median enrollment 57 across the 31 interventional studies, 54 across the 1 observational. Of the 25 that completed or were terminated, 16 (64%) have results posted.

Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 32 studies in Alcohol Drinking by Yale University, or all of them as a file.
02

Study summary

This study tests the feasibility of an intervention to prevent risky alcohol or marijuana use that adds a 4-week course of tailored text messaging to a brief motivational intervention for 13-18-year-old adolescents.

03

Conditions studied

  • Alcohol Drinking
  • Marijuana

Browse trials for

04

Who can participate

Ages eligible
13 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 13 to 18 years old
  • Able to provide consent or assent and parental permission
  • have a functioning cell phone without pay-as-you-go text messaging

Exclusion criteria

Exclusion Criteria:

  • currently enrolled in any substance abuse program;
  • have medical/psychiatric condition that precludes participation
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Text messaging and brief intervention

    Brief motivational interview and 4-weeks of text messaging.

    Behavioral: Text Messaging and Brief Negotiation Interview

Interventions

  • BehavioralText Messaging and Brief Negotiation Interview

    An in-person brief motivational intervention coupled with 4 weeks of motivational text messages

06

What researchers measure

Primary outcomes

  1. Enrollment

    Number of participants per month that enroll in the study

    Time frame: Baseline

  2. Retention

    % of enrolled participants that complete the 4-week follow up assessments

    Time frame: 4 weeks

  3. Satisfaction

    Participant's rating of how much they like the intervention (Likert scale)

    Time frame: 4 weeks

07

Study locations

1 site
  • Yale New Haven Hospital
    New Haven, Connecticut 06520, United States
08

References and documents

Individual participant data

Plan to share: No — IPD will not be shared

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 23, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03401333
Lead sponsor
Yale University
Responsible party
Sponsor
First posted
Jan 17, 2018
Start date
Nov 14, 2017
Primary completion
Jun 6, 2018
Completion
Jun 6, 2018
Last update
Oct 23, 2018

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2018. You cannot join it, but the record below documents what was studied.

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Discussion

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